Mazda Rx-7 Turbo Upgrade: Achieve 50+ Hp Gains with the Garrett Gtx Series

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The Mazda RX-7 is a legendary sports car, known for its lightweight design and rotary engine. Many enthusiasts seek to enhance its performance through turbo upgrades. One of the most effective ways to achieve significant horsepower gains is by installing the Garrett GTX series turbocharger. This article explores how to achieve over 50 horsepower increases with this upgrade.

Understanding the Mazda RX-7 Turbo System

The RX-7 utilizes a unique rotary engine, which provides a different tuning experience compared to traditional piston engines. The stock turbocharger is designed to deliver a balance between performance and reliability. However, upgrading to a Garrett GTX series turbo can significantly enhance the power output.

Benefits of Upgrading to Garrett GTX Turbo

Upgrading to the Garrett GTX series turbocharger offers several advantages:

  • Increased Horsepower: Achieve over 50 additional horsepower.
  • Improved Efficiency: Enhanced airflow and reduced turbo lag.
  • Better Responsiveness: Quicker spool times for immediate power delivery.
  • Durability: Designed for high-performance applications.

Choosing the Right Garrett GTX Turbo

Garrett offers a variety of GTX turbo options. Selecting the right one for your RX-7 depends on your performance goals and engine setup.

  • GTX2867R: Ideal for street applications with excellent spool characteristics.
  • GTX3071R: Offers a balance between street and track performance.
  • GTX3582R: Suitable for high horsepower builds and racing applications.

Installation Process

Installing a Garrett GTX turbocharger on your RX-7 requires some mechanical knowledge and the right tools. Here’s a general overview of the installation process:

  • Preparation: Gather necessary tools and parts, including a turbo kit, gaskets, and oil lines.
  • Remove Stock Turbo: Disconnect the battery, remove intake and exhaust components, and take out the stock turbocharger.
  • Install GTX Turbo: Follow the manufacturer’s instructions for mounting the new turbo, ensuring all connections are secure.
  • Reassemble: Reattach intake and exhaust components, and reconnect the battery.
  • Tuning: After installation, proper tuning is essential to maximize performance and reliability.

Tuning Your Mazda RX-7

Once the Garrett GTX turbo is installed, tuning is crucial to achieve optimal performance. A professional tuner can help adjust the engine management system to accommodate the increased airflow and boost levels.

Tuning Considerations

  • Fuel Maps: Adjust fuel delivery for optimal air-fuel ratios.
  • Ignition Timing: Modify timing to prevent knock and improve performance.
  • Boost Control: Set boost levels according to your turbo and engine setup.

Performance Expectations

With the Garrett GTX turbo upgrade and proper tuning, RX-7 owners can expect substantial performance improvements. Many report gains of over 50 horsepower, transforming the driving experience.

Real-World Performance Results

  • Dyno Results: Many RX-7s see peak horsepower figures exceeding 300 HP.
  • Track Times: Improved acceleration times and better lap performance.
  • Driving Experience: Enhanced throttle response and overall driving enjoyment.

Conclusion

Upgrading your Mazda RX-7 with a Garrett GTX turbocharger is an excellent way to achieve significant horsepower gains. With careful selection, proper installation, and tuning, you can unlock the full potential of your rotary engine, making your RX-7 a true performance machine.